Posted by **Anna** on Thursday, March 14, 2013 at 12:09pm.

Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with this. All I need is a formula, please. :)Thank you! Here it is:

A skier with a mass of 60.0 kg pushes off with a horizontal speed of 3.0 m/s from the top of a snow

covered hill. As he slides down the hill, his height decreases by 42 m over a distance of 100 m of travel.

How much will his kinetic energy increase by the time he reaches the bottom of the hill